Hey Michael,
Another day, another 50p.
1. Unplug whatever your internet connection is. Then run msconfig and go to
the startup tab, and disable your anti virus and firewall, reboot the
system, and see if the problem goes away. Lets get it narrowed down. Check
to see if explorer still uses a lot of cpu.
start/run
msconfig
Have a look in the services snap in at any norton services, double click on
them and select the dependencies tab, what services are listed in the top
pane. These are the services which must be running before the Norton Service
can start, they may be looping waiting on the dependent service, and hence
using a lot of cpu.
start/run
services.msc
2. 4 svchost processes sounds about right. These are the processes which run
all the windows xp services, although there are some viruses which disguise
themselves as a svchost process.
I have 4 on this system running XP professional.
I know you have norton anti virus, but just for my piece of mind, and to
eliminate the possibility of a virus, can you go to the symantec website and
run their online virus check.
http://security.symantec.com/sscv6/default.asp?productid=symhome&langid=ie&venid=sym
Click on the test your computers exposure link, and then select the virus
scan.
3. I really dont understand why and am rather concerned you can't get sfc to
run, it should be there.
Go into windows explorer and search for it.
In \windows\system32 you should find sfc.exe sfc.dll sfcfiles.dll sfc_os.dll
If these files aren't on your disk, perhaps you are missing others aswell.
Also check to see if you have the folder \windows\system32\dllcache
This is the first place from which sfc will restore missing or corrupt
system files.
After that it looks for \windows\servicepackfiles (did I ask if you have
sp1 and the latest patches?)
And after that if it still can't find what it needs it will promp for you to
insert the windows xp cd.
4. Try removing the Search option from the start menu, and rebooting and
then adding it back,
Right click on start button/properties/start menu tab/customize/advanced
Scroll down and uncheck start and reboot.
5. Have you traced the boot with bootvis yet to see which parts are taking
the time ? How long does bootvis time the boot at ?
6. I went back and read your origninal post, where you said you reinstalled
windows xp. Was this a clean install with a reformat, or a repair install ?
If it was a repair install, did you reapply and previously appied service
pack and fixes, if you didn't then you're program files may have problems.
7. Do you have a system restore point that you could go back to, when you
know the system was working ok?
Have a look in the system restore interface at what checkpoints are
available,
A quick route to it is
start/run
\%systemroot%\system32\restore\rstrui
Paul